package com.lino.design;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * @description: 单例模式-静态类使用
 * @author: lingjian
 * @createDate: 2022/12/20 8:52
 */
public class Singleton_00 {

    public static Map<String, String> cache = new ConcurrentHashMap<>();
}
